Why doesn’t the Leaning Tower of Pisa fall over? - Alex Gendler
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How Engineers Straightened the Leaning Tower of Pisa
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Could we build a wooden skyscraper? - Stefan Al
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One of the most controversial medical procedures in history - Jenell Johnson
14:21
Leaning Tower of Pisa | The Incredible Physics behind its Lean
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Trump Signs Slew of Crazy Executive Orders, Gets Mad at Church & a Shocking Lie Witness News
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The rise and fall of the Berlin Wall - Konrad H. Jarausch
14:25
Qu'y a-t-il à l'intérieur de Big Ben ? (Tour Elizabeth)
18:05